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| Source at commit 296 created 12 years 10 months ago. By ifabio, add i386 folder | |
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| 1 | /*␊ |
| 2 | * Copyright (c) 1998-2009 Apple Inc. All rights reserved.␊ |
| 3 | *␊ |
| 4 | * @APPLE_LICENSE_HEADER_START@␊ |
| 5 | * ␊ |
| 6 | * This file contains Original Code and/or Modifications of Original Code␊ |
| 7 | * as defined in and that are subject to the Apple Public Source License␊ |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in␊ |
| 9 | * compliance with the License. Please obtain a copy of the License at␊ |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this␊ |
| 11 | * file.␊ |
| 12 | * ␊ |
| 13 | * The Original Code and all software distributed under the License are␊ |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊ |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊ |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊ |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.␊ |
| 18 | * Please see the License for the specific language governing rights and␊ |
| 19 | * limitations under the License.␊ |
| 20 | * ␊ |
| 21 | * @APPLE_LICENSE_HEADER_END@␊ |
| 22 | */␊ |
| 23 | ␊ |
| 24 | /*!␊ |
| 25 | * @header IOBlockStorageDevice␊ |
| 26 | * @abstract␊ |
| 27 | * This header contains the IOBlockStorageDevice class definition.␊ |
| 28 | */␊ |
| 29 | ␊ |
| 30 | #ifndef _IOBLOCKSTORAGEDEVICE_H␊ |
| 31 | #define _IOBLOCKSTORAGEDEVICE_H␊ |
| 32 | ␊ |
| 33 | #include <IOKit/IOTypes.h>␊ |
| 34 | #include <IOKit/storage/IOStorageDeviceCharacteristics.h>␊ |
| 35 | ␊ |
| 36 | /*!␊ |
| 37 | * @defined kIOBlockStorageDeviceClass␊ |
| 38 | * @abstract␊ |
| 39 | * The name of the IOBlockStorageDevice class.␊ |
| 40 | */␊ |
| 41 | ␊ |
| 42 | #define kIOBlockStorageDeviceClass "IOBlockStorageDevice"␊ |
| 43 | ␊ |
| 44 | /*!␊ |
| 45 | * @defined kIOBlockStorageDeviceWriteCacheStateKey␊ |
| 46 | * @abstract␊ |
| 47 | * The name of the property used to get or set the write cache state of the␊ |
| 48 | * block storage device.␊ |
| 49 | */␊ |
| 50 | #define kIOBlockStorageDeviceWriteCacheStateKey␉"WriteCacheState"␊ |
| 51 | ␊ |
| 52 | #ifdef KERNEL␊ |
| 53 | #ifdef __cplusplus␊ |
| 54 | ␊ |
| 55 | /*␊ |
| 56 | * Kernel␊ |
| 57 | */␊ |
| 58 | ␊ |
| 59 | #include <IOKit/IOMemoryDescriptor.h>␊ |
| 60 | #include <IOKit/IOMessage.h>␊ |
| 61 | #include <IOKit/IOService.h>␊ |
| 62 | #include <IOKit/storage/IOMedia.h>␊ |
| 63 | ␊ |
| 64 | /*!␊ |
| 65 | * @defined kIOMessageMediaParametersHaveChanged␊ |
| 66 | * @abstract␊ |
| 67 | * The message ID which indicates that the media parameters, such as the highest valid block␊ |
| 68 | * for the device, have changed.␊ |
| 69 | * @discussion␊ |
| 70 | * The message is passed to all clients of the IOBlockStorageDevice via the message() method.␊ |
| 71 | */␊ |
| 72 | #define kIOMessageMediaParametersHaveChanged iokit_family_msg(sub_iokit_block_storage, 2)␊ |
| 73 | ␊ |
| 74 | /*!␊ |
| 75 | * @defined kIOMessageMediaStateHasChanged␊ |
| 76 | * @abstract␊ |
| 77 | * The message ID which indicates that the media state has changed.␊ |
| 78 | * @discussion␊ |
| 79 | * The message is passed to all clients of the IOBlockStorageDevice via the message() method.␊ |
| 80 | * The argument that is passed along with this message is an IOMediaState value.␊ |
| 81 | *␊ |
| 82 | * Devices that aren't capable of detecting media state changes indicate this in␊ |
| 83 | * the reportPollRequirements() method.␊ |
| 84 | */␊ |
| 85 | #define kIOMessageMediaStateHasChanged iokit_family_msg(sub_iokit_block_storage, 1)␊ |
| 86 | ␊ |
| 87 | /* Property used for matching, so the generic driver gets the nub it wants. */␊ |
| 88 | /*!␊ |
| 89 | * @defined kIOBlockStorageDeviceTypeKey␊ |
| 90 | * @abstract The name of the property tested for nub type matching by the generic block␊ |
| 91 | * storage driver.␊ |
| 92 | */␊ |
| 93 | #define␉kIOBlockStorageDeviceTypeKey␉"device-type"␊ |
| 94 | /*!␊ |
| 95 | * @defined kIOBlockStorageDeviceTypeGeneric␊ |
| 96 | * @abstract A character string used for nub matching.␊ |
| 97 | */␊ |
| 98 | #define␉kIOBlockStorageDeviceTypeGeneric␉"Generic"␊ |
| 99 | ␊ |
| 100 | /*!␊ |
| 101 | * @class␊ |
| 102 | * IOBlockStorageDevice␊ |
| 103 | * @abstract␊ |
| 104 | * A generic block storage device abstraction.␊ |
| 105 | * @discussion␊ |
| 106 | * The IOBlockStorageDevice class exports the generic block storage protocol,␊ |
| 107 | * independent of the physical connection protocol (e.g. SCSI, ATA, USB),␊ |
| 108 | * forwarding all requests to its provider (the Transport Driver).␊ |
| 109 | * Though the nub does no actual processing of requests, it is necessary␊ |
| 110 | * in a C++ environment. The Transport Driver can be of any type, as␊ |
| 111 | * long as it inherits from IOService. Because Transport Drivers needn't␊ |
| 112 | * derive from a type known to IOBlockStorageDriver, it isn't possible for␊ |
| 113 | * IOBlockStorageDriver to include the appropriate header file to allow direct␊ |
| 114 | * communication with the Transport Driver. Thus we achieve polymorphism by ␊ |
| 115 | * having the Transport Driver instantiate a subclass of IOBlockStorageDevice.␊ |
| 116 | * A typical implementation for a concrete subclass of IOBlockStorageDevice␊ |
| 117 | * simply relays all methods to its provider (the Transport Driver), which␊ |
| 118 | * implements the protocol- and device-specific behavior.␊ |
| 119 | * ␊ |
| 120 | * All pure-virtual functions must be implemented by the Transport Driver, which␊ |
| 121 | * is responsible for instantiating the Nub.␊ |
| 122 | */␊ |
| 123 | ␊ |
| 124 | class IOBlockStorageDevice : public IOService {␊ |
| 125 | ␊ |
| 126 | OSDeclareAbstractStructors(IOBlockStorageDevice)␊ |
| 127 | ␊ |
| 128 | protected:␊ |
| 129 | ␊ |
| 130 | struct ExpansionData { /* */ };␊ |
| 131 | ExpansionData * _expansionData;␊ |
| 132 | ␊ |
| 133 | public:␊ |
| 134 | ␊ |
| 135 | /* Overrides from IORegistryEntry */␊ |
| 136 | ␊ |
| 137 | using IORegistryEntry::getProperty;␊ |
| 138 | ␊ |
| 139 | /*!␊ |
| 140 | * @function init␊ |
| 141 | * @discussion␊ |
| 142 | * This function is overridden so that IOBlockStorageDevice can set a␊ |
| 143 | * property, used by IOBlockStorageDriver for matching. Since the concrete␊ |
| 144 | * subclass of IOBlockStorageDevice can be of any class type, the property␊ |
| 145 | * is used for matching.␊ |
| 146 | * ␊ |
| 147 | * This function is usually not overridden by developers.␊ |
| 148 | */ ␊ |
| 149 | virtual bool␉init(OSDictionary * properties);␊ |
| 150 | ␊ |
| 151 | virtual OSObject *␉getProperty(const OSSymbol * key) const;␊ |
| 152 | ␊ |
| 153 | virtual IOReturn␉setProperties(OSObject * properties);␊ |
| 154 | ␊ |
| 155 | /* --- A subclass must implement the the following methods: --- */␊ |
| 156 | ␊ |
| 157 | #ifndef __LP64__␊ |
| 158 | virtual IOReturn␉doAsyncReadWrite(IOMemoryDescriptor *buffer,␊ |
| 159 | UInt32 block, UInt32 nblks,␊ |
| 160 | IOStorageCompletion completion) __attribute__ ((deprecated));␊ |
| 161 | ␊ |
| 162 | virtual IOReturn␉doSyncReadWrite(IOMemoryDescriptor *buffer,␊ |
| 163 | UInt32 block,UInt32 nblks) __attribute__ ((deprecated));␊ |
| 164 | #endif /* !__LP64__ */␊ |
| 165 | ␊ |
| 166 | /*!␊ |
| 167 | * @function doEjectMedia␊ |
| 168 | * @abstract␊ |
| 169 | * Eject the media.␊ |
| 170 | */␊ |
| 171 | virtual IOReturn␉doEjectMedia(void)␉= 0;␊ |
| 172 | ␊ |
| 173 | /*!␊ |
| 174 | * @function doFormatMedia␊ |
| 175 | * @abstract␊ |
| 176 | * Format the media to the specified byte capacity.␊ |
| 177 | * @discussion␊ |
| 178 | * The specified byte capacity must be one supported by the device.␊ |
| 179 | * Supported capacities can be obtained by calling doGetFormatCapacities.␊ |
| 180 | * @param byteCapacity␊ |
| 181 | * The byte capacity to which the device is to be formatted, if possible.␊ |
| 182 | */␊ |
| 183 | virtual IOReturn␉doFormatMedia(UInt64 byteCapacity)␉= 0;␊ |
| 184 | ␊ |
| 185 | /*!␊ |
| 186 | * @function doGetFormatCapacities␊ |
| 187 | * @abstract␊ |
| 188 | * Return the allowable formatting byte capacities.␊ |
| 189 | * @discussion␊ |
| 190 | * This function returns the supported byte capacities for the device.␊ |
| 191 | * @param capacities␊ |
| 192 | * Pointer for returning the list of capacities.␊ |
| 193 | * @param capacitiesMaxCount␊ |
| 194 | * The number of capacity values returned in "capacities," or if no buffer␊ |
| 195 | * is given, the total number of capacity values available.␊ |
| 196 | */␊ |
| 197 | virtual UInt32␉doGetFormatCapacities(UInt64 * capacities,␊ |
| 198 | UInt32 capacitiesMaxCount) const␉= 0;␊ |
| 199 | ␊ |
| 200 | /*!␊ |
| 201 | * @function doLockUnlockMedia␊ |
| 202 | * @abstract␊ |
| 203 | * Lock or unlock the (removable) media in the drive.␊ |
| 204 | * @discussion␊ |
| 205 | * This method should only be called if the media is known to be removable.␊ |
| 206 | * @param doLock␊ |
| 207 | * True to lock the media, False to unlock.␊ |
| 208 | */␊ |
| 209 | virtual IOReturn␉doLockUnlockMedia(bool doLock)␉= 0;␊ |
| 210 | ␊ |
| 211 | /*!␊ |
| 212 | * @function doSynchronizeCache␊ |
| 213 | * @abstract␊ |
| 214 | * Force data blocks in the hardware's buffer to be flushed to the media.␊ |
| 215 | * @discussion␊ |
| 216 | * This method should only be called if the media is writable.␊ |
| 217 | */␊ |
| 218 | virtual IOReturn␉doSynchronizeCache(void)␉= 0;␊ |
| 219 | ␊ |
| 220 | /*!␊ |
| 221 | * @function getVendorString␊ |
| 222 | * @abstract␊ |
| 223 | * Return Vendor Name string for the device.␊ |
| 224 | * @result␊ |
| 225 | * A pointer to a static character string.␊ |
| 226 | */␊ |
| 227 | virtual char *␉getVendorString(void)␉= 0;␊ |
| 228 | ␊ |
| 229 | /*!␊ |
| 230 | * @function getProductString␊ |
| 231 | * @abstract␊ |
| 232 | * Return Product Name string for the device.␊ |
| 233 | * @result␊ |
| 234 | * A pointer to a static character string.␊ |
| 235 | */␊ |
| 236 | virtual char *␉getProductString(void)␉= 0;␊ |
| 237 | ␊ |
| 238 | /*!␊ |
| 239 | * @function getRevisionString␊ |
| 240 | * @abstract␊ |
| 241 | * Return Product Revision string for the device.␊ |
| 242 | * @result␊ |
| 243 | * A pointer to a static character string.␊ |
| 244 | */␊ |
| 245 | virtual char *␉getRevisionString(void)␉= 0;␊ |
| 246 | ␊ |
| 247 | /*!␊ |
| 248 | * @function getAdditionalDeviceInfoString␊ |
| 249 | * @abstract␊ |
| 250 | * Return additional informational string for the device.␊ |
| 251 | * @result␊ |
| 252 | * A pointer to a static character string.␊ |
| 253 | */␊ |
| 254 | virtual char *␉getAdditionalDeviceInfoString(void)␉= 0;␊ |
| 255 | ␊ |
| 256 | /*!␊ |
| 257 | * @function reportBlockSize␊ |
| 258 | * @abstract␊ |
| 259 | * Report the block size for the device, in bytes.␊ |
| 260 | * @param blockSize␊ |
| 261 | * Pointer to returned block size value.␊ |
| 262 | */ ␊ |
| 263 | virtual IOReturn␉reportBlockSize(UInt64 *blockSize)␉= 0;␊ |
| 264 | ␊ |
| 265 | /*!␊ |
| 266 | * @function reportEjectability␊ |
| 267 | * @abstract␊ |
| 268 | * Report if the media is ejectable under software control.␊ |
| 269 | * @discussion␊ |
| 270 | * This method should only be called if the media is known to be removable.␊ |
| 271 | * @param isEjectable␊ |
| 272 | * Pointer to returned result. True indicates the media is ejectable, False indicates␊ |
| 273 | * the media cannot be ejected under software control.␊ |
| 274 | */␊ |
| 275 | virtual IOReturn␉reportEjectability(bool *isEjectable)␉= 0;␊ |
| 276 | ␊ |
| 277 | /*!␊ |
| 278 | * @function reportLockability␊ |
| 279 | * @abstract␊ |
| 280 | * Report if the media is lockable under software control.␊ |
| 281 | * @discussion␊ |
| 282 | * This method should only be called if the media is known to be removable.␊ |
| 283 | * @param isLockable␊ |
| 284 | * Pointer to returned result. True indicates the media can be locked in place; False␊ |
| 285 | * indicates the media cannot be locked by software.␊ |
| 286 | */␊ |
| 287 | virtual IOReturn␉reportLockability(bool *isLockable)␉= 0;␊ |
| 288 | ␊ |
| 289 | #ifndef __LP64__␊ |
| 290 | virtual IOReturn␉reportMaxReadTransfer(UInt64 blockSize,UInt64 *max) __attribute__ ((deprecated));␊ |
| 291 | ␊ |
| 292 | virtual IOReturn␉reportMaxWriteTransfer(UInt64 blockSize,UInt64 *max) __attribute__ ((deprecated));␊ |
| 293 | #endif /* !__LP64__ */␊ |
| 294 | ␊ |
| 295 | /*!␊ |
| 296 | * @function reportMaxValidBlock␊ |
| 297 | * @abstract␊ |
| 298 | * Report the highest valid block for the device.␊ |
| 299 | * @param maxBlock␊ |
| 300 | * Pointer to returned result␊ |
| 301 | */ ␊ |
| 302 | virtual IOReturn␉reportMaxValidBlock(UInt64 *maxBlock)␉= 0;␊ |
| 303 | ␊ |
| 304 | /*!␊ |
| 305 | * @function reportMediaState␊ |
| 306 | * @abstract␊ |
| 307 | * Report the device's media state.␊ |
| 308 | * @discussion␊ |
| 309 | * This method reports whether we have media in the drive or not, and␊ |
| 310 | * whether the state has changed from the previously reported state.␊ |
| 311 | * ␊ |
| 312 | * A result of kIOReturnSuccess is always returned if the test for media is successful,␊ |
| 313 | * regardless of media presence. The mediaPresent result should be used to determine␊ |
| 314 | * whether media is present or not. A return other than kIOReturnSuccess indicates that␊ |
| 315 | * the Transport Driver was unable to interrogate the device. In this error case, the␊ |
| 316 | * outputs mediaState and changedState will *not* be stored.␊ |
| 317 | * @param mediaPresent Pointer to returned media state. True indicates media is present␊ |
| 318 | * in the device; False indicates no media is present.␊ |
| 319 | * @param changedState Pointer to returned result. True indicates a change of state since␊ |
| 320 | * prior calls, False indicates that the state has not changed.␊ |
| 321 | */␊ |
| 322 | virtual IOReturn␉reportMediaState(bool *mediaPresent,bool *changedState)␉= 0;␊ |
| 323 | ␊ |
| 324 | /*!␊ |
| 325 | * @function reportPollRequirements␊ |
| 326 | * @abstract␊ |
| 327 | * Report if it's necessary to poll for media insertion, and if polling is expensive.␊ |
| 328 | * @discussion␊ |
| 329 | * This method reports whether the device must be polled to detect media␊ |
| 330 | * insertion, and whether a poll is expensive to perform.␊ |
| 331 | * ␊ |
| 332 | * The term "expensive" typically implies a device that must be spun-up to detect media,␊ |
| 333 | * as on a PC floppy. Most devices can detect media inexpensively.␊ |
| 334 | * @param pollRequired␊ |
| 335 | * Pointer to returned result. True indicates that polling is required; False indicates␊ |
| 336 | * that polling is not required to detect media.␊ |
| 337 | * @param pollIsExpensive␊ |
| 338 | * Pointer to returned result. True indicates that the polling operation is expensive;␊ |
| 339 | * False indicates that the polling operation is cheap.␊ |
| 340 | */␊ |
| 341 | virtual IOReturn␉reportPollRequirements(bool *pollRequired,␊ |
| 342 | bool *pollIsExpensive)␉= 0;␊ |
| 343 | ␊ |
| 344 | /*!␊ |
| 345 | * @function reportRemovability␊ |
| 346 | * @abstract␊ |
| 347 | * Report whether the media is removable or not.␊ |
| 348 | * @discussion␊ |
| 349 | * This method reports whether the media is removable, but it does not␊ |
| 350 | * provide detailed information regarding software eject or lock/unlock capability.␊ |
| 351 | * @param isRemovable␊ |
| 352 | * Pointer to returned result. True indicates that the media is removable; False␊ |
| 353 | * indicates the media is not removable.␊ |
| 354 | */␊ |
| 355 | virtual IOReturn␉reportRemovability(bool *isRemovable) ␉= 0;␊ |
| 356 | ␊ |
| 357 | /*!␊ |
| 358 | * @function reportWriteProtection␊ |
| 359 | * @abstract␊ |
| 360 | * Report whether the media is write-protected or not.␊ |
| 361 | * @param isWriteProtected␊ |
| 362 | * Pointer to returned result. True indicates that the media is write-protected (it␊ |
| 363 | * cannot be written); False indicates that the media is not write-protected (it␊ |
| 364 | * is permissible to write).␊ |
| 365 | */␊ |
| 366 | virtual IOReturn␉reportWriteProtection(bool *isWriteProtected)␉= 0;␊ |
| 367 | ␊ |
| 368 | #ifndef __LP64__␊ |
| 369 | virtual IOReturn␉doAsyncReadWrite(IOMemoryDescriptor *buffer,␊ |
| 370 | UInt64 block, UInt64 nblks,␊ |
| 371 | IOStorageCompletion completion) __attribute__ ((deprecated));␊ |
| 372 | #endif /* !__LP64__ */␊ |
| 373 | ␊ |
| 374 | /*!␊ |
| 375 | * @function getWriteCacheState␊ |
| 376 | * @abstract␊ |
| 377 | * Reports the current write cache state of the device.␊ |
| 378 | * @discussion␊ |
| 379 | * Reports the current write cache state of the device. The write cache␊ |
| 380 | * state is not guaranteed to persist across reboots and detaches.␊ |
| 381 | * @param enabled␊ |
| 382 | * Pointer to returned result. True indicates the write cache is enabled;␊ |
| 383 | * False indicates the write cache is disabled.␊ |
| 384 | */␊ |
| 385 | #ifdef __LP64__␊ |
| 386 | virtual IOReturn␉getWriteCacheState(bool *enabled)␉= 0;␊ |
| 387 | #else /* !__LP64__ */␊ |
| 388 | virtual IOReturn␉getWriteCacheState(bool *enabled); /* 10.3.0 */␊ |
| 389 | #endif /* !__LP64__ */␊ |
| 390 | ␊ |
| 391 | /*!␊ |
| 392 | * @function setWriteCacheState␊ |
| 393 | * @abstract␊ |
| 394 | * Sets the write cache state of the device.␊ |
| 395 | * @discussion␊ |
| 396 | * Sets the write cache state of the device. The write cache state␊ |
| 397 | * is not guaranteed to persist across reboots and detaches.␊ |
| 398 | * @param enabled␊ |
| 399 | * True to enable the write cache; False to disable the write cache.␊ |
| 400 | */␊ |
| 401 | #ifdef __LP64__␊ |
| 402 | virtual IOReturn␉setWriteCacheState(bool enabled)␉= 0;␊ |
| 403 | #else /* !__LP64__ */␊ |
| 404 | virtual IOReturn␉setWriteCacheState(bool enabled); /* 10.3.0 */␊ |
| 405 | #endif /* !__LP64__ */␊ |
| 406 | ␊ |
| 407 | /*!␊ |
| 408 | * @function doAsyncReadWrite␊ |
| 409 | * @abstract␊ |
| 410 | * Start an asynchronous read or write operation.␊ |
| 411 | * @param buffer␊ |
| 412 | * An IOMemoryDescriptor describing the data-transfer buffer. The data direction␊ |
| 413 | * is contained in the IOMemoryDescriptor. Responsibility for releasing the descriptor␊ |
| 414 | * rests with the caller.␊ |
| 415 | * @param block␊ |
| 416 | * The starting block number of the data transfer.␊ |
| 417 | * @param nblks␊ |
| 418 | * The integral number of blocks to be transferred.␊ |
| 419 | * @param attributes␊ |
| 420 | * Attributes of the data transfer. See IOStorageAttributes.␊ |
| 421 | * @param completion␊ |
| 422 | * The completion routine to call once the data transfer is complete.␊ |
| 423 | */␊ |
| 424 | #ifdef __LP64__␊ |
| 425 | virtual IOReturn␉doAsyncReadWrite(IOMemoryDescriptor *buffer,␊ |
| 426 | UInt64 block, UInt64 nblks,␊ |
| 427 | IOStorageAttributes *attributes,␊ |
| 428 | IOStorageCompletion *completion)␉= 0;␊ |
| 429 | #else /* !__LP64__ */␊ |
| 430 | virtual IOReturn␉doAsyncReadWrite(IOMemoryDescriptor *buffer,␊ |
| 431 | UInt64 block, UInt64 nblks,␊ |
| 432 | IOStorageAttributes *attributes,␊ |
| 433 | IOStorageCompletion *completion); /* 10.5.0 */␊ |
| 434 | #endif /* !__LP64__ */␊ |
| 435 | ␊ |
| 436 | /*!␊ |
| 437 | * @function requestIdle␊ |
| 438 | * @abstract␊ |
| 439 | * Request that the device enter an idle state.␊ |
| 440 | * @discussion␊ |
| 441 | * Request that the device enter an idle state. The device will exit this state on the␊ |
| 442 | * next read or write request, or as it sees necessary. One example is for a DVD drive␊ |
| 443 | * to spin down when it enters such an idle state, and spin up on the next read request␊ |
| 444 | * from the system.␊ |
| 445 | */␊ |
| 446 | virtual IOReturn␉requestIdle(void); /* 10.6.0 */␊ |
| 447 | ␊ |
| 448 | /*!␊ |
| 449 | * @function doDiscard␊ |
| 450 | * @abstract␊ |
| 451 | * Delete unused data blocks from the media.␊ |
| 452 | * @param block␊ |
| 453 | * The starting block number of the operation.␊ |
| 454 | * @param nblks␊ |
| 455 | * The integral number of blocks to be deleted.␊ |
| 456 | */␊ |
| 457 | virtual IOReturn doDiscard(UInt64 block, UInt64 nblks); /* 10.6.0 */␊ |
| 458 | ␊ |
| 459 | #ifdef __LP64__␊ |
| 460 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 0);␊ |
| 461 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 1);␊ |
| 462 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 2);␊ |
| 463 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 3);␊ |
| 464 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 4);␊ |
| 465 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 5);␊ |
| 466 | #else /* !__LP64__ */␊ |
| 467 | OSMetaClassDeclareReservedUsed(IOBlockStorageDevice, 0);␊ |
| 468 | OSMetaClassDeclareReservedUsed(IOBlockStorageDevice, 1);␊ |
| 469 | OSMetaClassDeclareReservedUsed(IOBlockStorageDevice, 2);␊ |
| 470 | OSMetaClassDeclareReservedUsed(IOBlockStorageDevice, 3);␊ |
| 471 | OSMetaClassDeclareReservedUsed(IOBlockStorageDevice, 4);␊ |
| 472 | OSMetaClassDeclareReservedUsed(IOBlockStorageDevice, 5);␊ |
| 473 | #endif /* !__LP64__ */␊ |
| 474 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 6);␊ |
| 475 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 7);␊ |
| 476 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 8);␊ |
| 477 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 9);␊ |
| 478 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 10);␊ |
| 479 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 11);␊ |
| 480 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 12);␊ |
| 481 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 13);␊ |
| 482 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 14);␊ |
| 483 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 15);␊ |
| 484 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 16);␊ |
| 485 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 17);␊ |
| 486 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 18);␊ |
| 487 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 19);␊ |
| 488 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 20);␊ |
| 489 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 21);␊ |
| 490 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 22);␊ |
| 491 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 23);␊ |
| 492 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 24);␊ |
| 493 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 25);␊ |
| 494 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 26);␊ |
| 495 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 27);␊ |
| 496 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 28);␊ |
| 497 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 29);␊ |
| 498 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 30);␊ |
| 499 | OSMetaClassDeclareReservedUnused(IOBlockStorageDevice, 31);␊ |
| 500 | };␊ |
| 501 | ␊ |
| 502 | #endif /* __cplusplus */␊ |
| 503 | #endif /* KERNEL */␊ |
| 504 | #endif /* !_IOBLOCKSTORAGEDEVICE_H */␊ |
| 505 | |
